Envoy 2WD V6-4.3L VIN W (1998)
Garage Door Opener Transmitter: Description and Operation
Circuit Operation
The CTSY LP fuse 8 and CKT 40 (ORN) supply voltage at all times to the Universal Garage Door Opener (UGDO) Module. The following components
provide the UGDO module ground path:
^
CKT 1850 (PPL/YEL) or CKT 1850 (BLK)
^
G200
The Body Control Module (BCM) on CKT 1382 (PPL/WHT) or CKT 1382 (DK GRN) provides backlighting.
